Britain’s Got Talent Robbie Kennedy has sent Goo Goo Dolls song Iris soaring up the charts after he performed it on the show on Saturday night.The brick layer took to the stage on this weekend’s episode of the talent contest and wowed audiences with his version of the tune.The track was originally released in April 1998 but returned to the top 10 in the iTunes Store Top 10 Songs chart after Robbie sung it on the show.And Simon Cowell even predicted the labourer would have a number one hit with the song if he was to release it himself, saying during the show: “I wasn’t expecting that, I think i